First of all, eel and loach are different families, eel belongs to the animal kingdom, the family of gill fish, gill fish, eel subfamily, eel fish, and loach for the animal kingdom carp, carp suborder, loach, loach subfamily, loach fish.

Difference two: different morphology

The eel and loach morphology is not the same, the eel body length is large, the head is long and round, the shape of the elongated serpentine, the body of the front rounded rear lateral compression of the tail is thin, the head is obviously slightly thicker than the body, and the mouth is large end position, the upper jaw is slightly protruding, the lips are quite well developed, and loach shape body is small and slender, the shape of the long cylindrical, tail lateral compression, the mouth down to horseshoe, the body of the dorsal and dorsal gray and black and have small black spots, the dorsal fin and the dorsal fins. There are small black spots, dorsal fin and caudal fin membrane spots arranged in rows, a simple way to identify the loach mouth tip has a beard tail wide, eel head big no beard tail tip.

Difference three: different distribution

The distribution of yellow eel and loach is different, yellow eel is widely distributed in lakes, rivers, reservoirs, ponds, ditches and other bodies of water throughout the country, mainly in the Pearl River Basin and Yangtze River Basin area, mainly distributed in Thailand, Indonesia, the Philippines and other places abroad, while the loach is more widely distributed in China, in addition to the Qinghai-Tibet Plateau and the Tibetan Linzhi area. In addition to the Tibetan Plateau and Tibet Linzhi area, there are almost all distribution in natural freshwater waters such as paddy fields, ponds, lakes and reservoirs all over the country, mainly in the middle and lower reaches of the Yangtze River and the Pearl River Basin.